http://web.telia.com/~u85920178/index.htm

Click on "Projects" then "Synthesizer circuits". Then click on "Synth
basics" on the left side menu.

This is a brief tutorial on PLL's. This should answer some of your
questions.

--
Regards,
Leland C. Scott
KC8LDO

"jim" wrote in message
...
Pardon my ignorance, but what is a 8719 PLL chip and what does it do.
Thanks
for any replies.